* "Human" is a word, not a vowel. Vowels are sounds, like "a," "e," "i," "o," and "u."
* The word "human" has both long and short vowels.
* The "u" in "human" is a short vowel sound, like the "u" in "cup."
* The "a" in "human" is a long vowel sound, like the "a" in "name."
So, the answer is neither, because it's a word with both long and short vowel sounds.